Explain how a bar model can be used to show a subtraction problem.

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?